CN102288146B - Hydraulic system for three-degree-of-freedom vehicle wheel clearance detecting table - Google Patents
Hydraulic system for three-degree-of-freedom vehicle wheel clearance detecting table Download PDFInfo
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- CN102288146B CN102288146B CN201110118971A CN201110118971A CN102288146B CN 102288146 B CN102288146 B CN 102288146B CN 201110118971 A CN201110118971 A CN 201110118971A CN 201110118971 A CN201110118971 A CN 201110118971A CN 102288146 B CN102288146 B CN 102288146B
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Abstract
The invention relates to a hydraulic system for a three-degree-of-freedom vehicle wheel clearance detecting table. The system comprises a power source hydraulic system (A), a transverse hydraulic system (B) and a longitudinal hydraulic system (C). In the transverse hydraulic system (B), a transverse rear hydraulic cylinder (10) is connected with a transverse front hydraulic cylinder (12) through a two-position four-way valve V3 (13), so that the front hydraulic cylinder and the rear hydraulic cylinder can synchronously act. The longitudinal hydraulic system (C) comprises a longitudinal hydraulic cylinder (8) and a three-position four-way valve V1 (9); an A port and a B port of the three-position four-way valve V1 (9) are respectively connected with a left chamber oil port and a right chamber oil port of the longitudinal hydraulic cylinder (8); P ports of the three-position four-way valve V1 (9) and a three-position four-way valve V2 (11) are connected with an oil outlet of a hydraulic pump (5) of the power source hydraulic system (A); and T ports of the three-position four-way valve V1 (9) and the three-position four-way valve V2 (11) are connected with an oil return pipeline of the hydraulic pump (5) of the power source hydraulic system (A). The hydraulic system provided by the invention aims at realizing three-degree-of-freedom motion of a detecting table plate through the three hydraulic cylinders and a connecting relation of the three hydraulic cylinders.
Description
Technical field
The present invention relates to the hydraulic system of a kind of hydraulic system, particularly a kind of 3-freedom-degree wheel clearance detection platform.
Background technology
Present automotive wheels, axle, the motion of suspension clearance detection platform are single, can not loosening gap fully be exposed, and detect not comprehensively, so have designed a kind of wheel clearance detection platform of Three Degree Of Freedom.The present invention provides a kind of hydraulic system that makes the platen three-degree-of-freedom motion for wheel clearance detection platform.
Summary of the invention
A kind of hydraulic system that is used for 3-freedom-degree wheel clearance detection platform provided by the invention is intended to realize detecting the platen three degrees of freedom of movement through three hydraulic cylinders and annexation thereof.
Above-mentioned purpose of the present invention provides, and technical scheme realizes that accompanying drawings is following:
A kind of hydraulic system that is used for 3-freedom-degree wheel clearance detection platform; Form by power source hydraulic system A, the B of transverse hydraulic system and vertical hydraulic system C; The described transverse hydraulic B of system comprise horizontal back hydraulic cylinder 10, three-position four-way valve V2-11, laterally before hydraulic cylinder 12 and two-position four-way valve V3-13, wherein laterally before hydraulic cylinder 12 through three-position four-way valve V2-11 and two-position four-way valve V3-13 with horizontal after hydraulic cylinder 10 be connected; Described vertical hydraulic system C comprises vertical hydraulic cylinder 8 and three-position four-way valve V1-9; The A of three-position four-way valve V1-9, B mouth are connected with the left and right chamber hydraulic fluid port of vertical hydraulic cylinder 8 respectively; The P mouth of three-position four-way valve V1-9 and three-position four-way valve V2-11 is connected with hydraulic pump 5 oil-outs of power source hydraulic system A, and the T mouth is connected with return line.
Described power source hydraulic system A is by liquid level meter 1, thermometer 2, fuel tank 3, filtrator 4, hydraulic pump 5, pressure meter switch 6, tensimeter 7, surplus valve V5-14 and build and press valve V4-15 to form; The oil-in of filtrator 4 is connected with fuel tank 3; The inlet port of hydraulic pump 5 is connected with filtrator 4; The oil-out of hydraulic pump 5 is connected with tensimeter 7 through pressure meter switch 6, and the oil-in of while and surplus valve V5-14, the P mouth of building pressure valve V4-15 are connected, and liquid level meter 1 is connected with fuel tank 3 with thermometer 2.
The A mouth of three-position four-way valve V2-11 among the described transverse hydraulic B of system is connected with horizontal back hydraulic cylinder 10 left chamber hydraulic fluid ports, and the B mouth is connected with the T mouth of two-position four-way valve V3-13; The A mouth of two-position four-way valve V3-13 is connected with the left chamber hydraulic fluid port of laterally preceding hydraulic cylinder 12, and the B mouth is connected with the right chamber hydraulic fluid port of laterally preceding hydraulic cylinder 12, and the P mouth is connected with the right chamber hydraulic fluid port of horizontal back hydraulic cylinder 10.
Control two-position four-way valve V3-13 among the said transverse hydraulic B of system action, when spool during in position in the same way, laterally the right chamber hydraulic fluid port of back hydraulic cylinder 10 communicates front and back two cylinder homodromous movements with the left chamber hydraulic fluid port of laterally preceding hydraulic cylinder 12; Control two-position four-way valve V3-13 action, make spool at reverse position, laterally the right chamber hydraulic fluid port of back hydraulic cylinder 10 communicates front and back two cylinder counteragents with the right chamber hydraulic fluid port of laterally preceding hydraulic cylinder 12.
Beneficial effect: a kind of hydraulic system of the present invention's design makes monitor station can realize three-degree-of-freedom motion.Provide with three hydraulic cylinders and annexation thereof and realize the platen three degrees of freedom of movement, promptly front, rear, left and right are moved and are rotated around vertical direction.Characteristics of the present invention are that horizontal front and back two cylinders link to each other through a two-position four way change valve, therefore can synchronization actions, guaranteed the consistance of action, and avoid lagging behind.But the present invention's specialized application also can be applicable on other equipment that will realize three-degree-of-freedom motion on 3-freedom-degree wheel clearance detection platform.
Description of drawings
Fig. 1 is used for the structural representation of the hydraulic system of 3-freedom-degree wheel clearance detection platform.
Fig. 2 is used for the structural representation of the hydraulic system of 3-freedom-degree wheel clearance detection platform.
Fig. 3 is the structural representation of former and later two hydraulic cylinder actions laterally.
(a) horizontal structural representation of former and later two hydraulic cylinder homodromous movements wherein.
(b) the horizontal structural representation of former and later two hydraulic cylinder counteragents.
The hydraulic system structure figure of the firm and hard existing three-degree-of-freedom motion of Fig. 4 monitor station.
Wherein (a) detects the platen hydraulic scheme that travels forward.
(b) detect platen motion hydraulic scheme backward.
(c) detect platen motion hydraulic scheme left.
(d) detect platen and move right hydraulic scheme.
(e) detect the clockwise motion hydraulic scheme of platen.
(f) detect the counterclockwise motion hydraulic scheme of platen.
Fig. 5 is applied to the hydraulic work system synoptic diagram of 3-freedom-degree wheel clearance detection platform.
Fig. 6 is used for the connection layout in kind of the hydraulic system of 3-freedom-degree wheel clearance detection platform.
Among the figure: A-power source hydraulic system; B-transverse hydraulic system; The vertical hydraulic system of C-;
1-liquid level meter; The 2-thermometer; The 3-fuel tank; The 4-filtrator; The 5-hydraulic pump; The 6-pressure meter switch; The 7-tensimeter; The vertical hydraulic cylinder of 8-; 9-three-position four-way valve V1; 10-is the back hydraulic cylinder laterally; 11-three-position four-way valve V2; The laterally preceding hydraulic cylinder of 12-; 13-two-position four-way valve V3; 14-surplus valve V5; 15-builds and presses valve V4.
Embodiment
Below in conjunction with the accompanying drawing illustrated embodiment particular content of the present invention is done further explain.
With reference to Fig. 1, a kind of hydraulic system that is used for 3-freedom-degree wheel clearance detection platform is made up of power source hydraulic system A, the B of transverse hydraulic system, vertical hydraulic system C.
With reference to Fig. 2; A kind of hydraulic system that is used for 3-freedom-degree wheel clearance detection platform, described power source hydraulic system A by liquid level meter 1, thermometer 2, fuel tank 3, filtrator 4, hydraulic pump 5, pressure meter switch 6, tensimeter 7, surplus valve V5-14, build and press valve V4-15 to form.The oil-in of filtrator 4 is connected with fuel tank 3; The inlet port of hydraulic pump 5 is connected with filtrator 4; The oil-out of hydraulic pump 5 is connected with tensimeter 7 with pressure meter switch 6; Be connected with the oil-in of surplus valve V5-14 simultaneously, and be connected with the P mouth of building pressure valve V4-15, liquid level meter 1 is connected with fuel tank 3 with thermometer 2.Building and pressing valve V4-15 is the open type reversal valve, when this valve must not electricity, main oil gallery is communicated with fuel tank, and when the starting operation of driven by motor oil pump, main oil gallery can not set up oil pressure, so can guarantee empty load of motor starting saving electric power, protects motor.Surplus valve V5-14 plays adjustment and restriction MTP in native system, unload the plastics head protector, uses spanner to adjust.Tensimeter 7 plays the effect of keeping watch on oil pressure, uses closing presure meter valve at ordinary times, the damage that is not stressed and impacts with the protection tensimeter when just adjusting hydraulic system.
With reference to Fig. 2, a kind of hydraulic system that is used for 3-freedom-degree wheel clearance detection platform, the described transverse hydraulic B of system comprises horizontal back hydraulic cylinder 10, three-position four-way valve V2-11, laterally preceding hydraulic cylinder 12, two-position four-way valve V3-13.The A mouth of three-position four-way valve V2-11 is connected with horizontal back hydraulic cylinder 10 left chamber hydraulic fluid ports, and the B mouth is connected with the T mouth of two-position four-way valve V3-13, and the P mouth is connected with the oil-out of hydraulic pump 5, and the T mouth is connected with return line; The A mouth of two-position four-way valve V3-13 is connected with the left chamber hydraulic fluid port of laterally preceding hydraulic cylinder 12, and the B mouth is connected with the right chamber hydraulic fluid port of laterally preceding hydraulic cylinder 12, and the P mouth is connected with the right chamber hydraulic fluid port of horizontal back hydraulic cylinder 10.
With reference to Fig. 2, a kind of hydraulic system that is used for 3-freedom-degree wheel clearance detection platform, described vertical hydraulic system C is made up of with three-position four-way valve V1-9 vertical hydraulic cylinder 8.The A mouth of three-position four-way valve V1-9 is connected with vertical hydraulic cylinder 8 left chamber hydraulic fluid ports, and the B mouth is connected with vertical hydraulic cylinder 8 right chamber hydraulic fluid ports, and the P mouth is connected with hydraulic pump 5 oil-outs, and the T mouth is connected with return line.
With reference to Fig. 3 (a) and (b); A kind of hydraulic system that is used for 3-freedom-degree wheel clearance detection platform is characterized in that, laterally preceding hydraulic cylinder 12 is connected with horizontal back hydraulic cylinder 10; Control two-position four-way valve V3-13 action; When spool during in Fig. 3 (a) position, laterally the right chamber hydraulic fluid port of back hydraulic cylinder 10 communicates with the left chamber hydraulic fluid port of laterally preceding hydraulic cylinder 12, so front and back two cylinder homodromous movements; Control two-position four-way valve V3-13 action, make spool in Fig. 3 (b) position, laterally the right chamber hydraulic fluid port of back hydraulic cylinder 10 communicates with the right chamber hydraulic fluid port of laterally preceding hydraulic cylinder 12, so front and back two cylinder counteragents.Compared to two hydraulic cylinders of independent control, the consistance that the present invention can safety action is avoided lagging behind, and makes exercise not harmony.
With reference to Fig. 4 (a), 4 (b), 4 (c), 4 (d), 4 (e), 4 (f), 5,6, like Fig. 4 (a), vertically chamber, a hydraulic cylinder left side charges into hydraulic oil, vertically hydraulic cylinder elongation, and platen moves backward; With reference to Fig. 4 (b), vertically the right chamber of hydraulic cylinder charges into hydraulic oil, and vertically hydraulic cylinder shortens, and platen travels forward; With reference to Fig. 4 (c), when hydraulic oil was injected in chamber, a hydraulic cylinder left side, horizontal back, chamber, a laterally preceding hydraulic cylinder left side also was squeezed into hydraulic oil, and then two cylinders extend simultaneously, and platen is to left movement; With reference to Fig. 4 (d), when hydraulic oil was injected in the right chamber of laterally preceding hydraulic cylinder, laterally chamber, the back hydraulic cylinder right side also was squeezed into hydraulic oil, and then two cylinders shorten simultaneously, and platen moves right; With reference to Fig. 4 (e), when hydraulic oil was injected in chamber, a hydraulic cylinder left side, horizontal back, the right chamber of laterally preceding hydraulic cylinder also was squeezed into hydraulic oil, then back cylinder elongation, and preceding cylinder shortens, and platen moves clockwise; With reference to Fig. 4 (f), when hydraulic oil was injected in chamber, a laterally preceding hydraulic cylinder left side, laterally chamber, the back hydraulic cylinder right side also was squeezed into hydraulic oil, and then the back cylinder shortens, preceding cylinder elongation, and platen moves counterclockwise.
Claims (3)
1. hydraulic system that is used for 3-freedom-degree wheel clearance detection platform; Form by power source hydraulic system (A), transverse hydraulic system (B) and vertical hydraulic system (C); It is characterized in that; Described transverse hydraulic system (B) comprise horizontal back hydraulic cylinder (10), three-position four-way valve V2 (11), laterally before hydraulic cylinder (12) and two-position four-way valve V3 (13), wherein laterally before hydraulic cylinder (12) through three-position four-way valve V2 (11) and two-position four-way valve V3 (13) with horizontal after hydraulic cylinder (10) be connected; Described vertical hydraulic system (C) comprises vertical hydraulic cylinder (8) and three-position four-way valve V1 (9); The A of three-position four-way valve V1 (9), B mouth are connected with the left and right chamber hydraulic fluid port of vertical hydraulic cylinder (8) respectively; The P mouth of the P mouth of three-position four-way valve V1 (9) and three-position four-way valve V2 (11) all is connected with hydraulic pump (5) oil-out of power source hydraulic system (A), and the T mouth of three-position four-way valve V1 (9) all is connected with return line with the T mouth of three-position four-way valve V2 (11); The A mouth of three-position four-way valve V2 (11) in the described transverse hydraulic system (B) is connected with the left chamber of hydraulic cylinder (10), horizontal back hydraulic fluid port, and the B mouth of three-position four-way valve V2-11 is connected with the T mouth of two-position four-way valve V3 (13); The A mouth of two-position four-way valve V3 (13) is connected with the left chamber hydraulic fluid port of laterally preceding hydraulic cylinder (12); The B mouth of two-position four-way valve V3 (13) is connected with the right chamber hydraulic fluid port of laterally preceding hydraulic cylinder (12), and the P mouth of two-position four-way valve V3 (13) is connected with the right chamber hydraulic fluid port of horizontal back hydraulic cylinder (10).
2. a kind of hydraulic system that is used for 3-freedom-degree wheel clearance detection platform according to claim 1; It is characterized in that; Described power source hydraulic system (A) is by liquid level meter (1), thermometer (2), fuel tank (3), filtrator (4), hydraulic pump (5), pressure meter switch (6), tensimeter (7), surplus valve V5 (14) and build and press valve V4 (15) to form; The oil-in of filtrator (4) is connected with fuel tank (3); The inlet port of hydraulic pump (5) is connected with filtrator (4); The oil-out of hydraulic pump (5) is connected with tensimeter (7) through pressure meter switch (6), and the oil-in of while and surplus valve V5 (14), the P mouth of building pressure valve V4 (15) are connected, and liquid level meter (1) is connected with fuel tank (3) with thermometer (2).
3. a kind of hydraulic system that is used for 3-freedom-degree wheel clearance detection platform according to claim 1; It is characterized in that; In the described transverse hydraulic system (B), control two-position four-way valve V3 (13) action is when spool during in position in the same way; Laterally the right chamber hydraulic fluid port of back hydraulic cylinder (10) communicates front and back two cylinder homodromous movements with the left chamber hydraulic fluid port of laterally preceding hydraulic cylinder (12); Control two-position four-way valve V3 (13) action, make spool at reverse position, laterally the right chamber hydraulic fluid port of back hydraulic cylinder (10) communicates front and back two cylinder counteragents with the right chamber hydraulic fluid port of laterally preceding hydraulic cylinder (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110118971A CN102288146B (en) | 2011-05-10 | 2011-05-10 | Hydraulic system for three-degree-of-freedom vehicle wheel clearance detecting table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110118971A CN102288146B (en) | 2011-05-10 | 2011-05-10 | Hydraulic system for three-degree-of-freedom vehicle wheel clearance detecting table |
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| Publication Number | Publication Date |
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| CN102288146A CN102288146A (en) | 2011-12-21 |
| CN102288146B true CN102288146B (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110118971A Expired - Fee Related CN102288146B (en) | 2011-05-10 | 2011-05-10 | Hydraulic system for three-degree-of-freedom vehicle wheel clearance detecting table |
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| CN104533890B (en) * | 2014-12-23 | 2016-08-31 | 南京航空航天大学 | A kind of three-dimensional loads hydraulic means |
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| IT1070618B (en) * | 1976-07-20 | 1985-04-02 | Fiat Spa | HYDRAULIC BRAKING SYSTEM WITHOUT ACCUMULATORS FOR THE SUPPLY OF MULTIPLE INDEPENDENT SERVICES |
| CN2539235Y (en) * | 2002-04-23 | 2003-03-05 | 范志中 | Three free degree hydraulic servo platform |
| US7614335B2 (en) * | 2006-11-30 | 2009-11-10 | Caterpillar Inc. | Hydraulic system with variable standby pressure |
| CN101464145B (en) * | 2009-01-09 | 2010-11-03 | 荆州恒盛汽车系统有限公司 | Test method for vehicle direction converter assembly clearance |
| CN101514715A (en) * | 2009-03-23 | 2009-08-26 | 吉林大学 | Piezoelectric/electrorheological mixed ultraprecise hydraulic step drive device |
| CN202048905U (en) * | 2011-05-10 | 2011-11-23 | 吉林大学 | Hydraulic system used for three degree of freedom wheel gap detecting bench |
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